Eyeless needle.



P. R. MINAHAN.

EYELESS NEEDLE.

APPLICATION FILED JUNE 9, 101a Patented Aug. 11

7 no 6 0 l 1 51mm 1 fi M'zmhmz wwneooeo THE NORRIS PETERS CO..PHOT0L!THO4. WASHINGTON. D. C.

FICE.

PATRICK ROBERT MINAHAN, G33 FGND DU LAG, WISCONSIN.

EYELESS NEEDLE.

ioness.

Specification of Letters Patent.

Patented Aug. 11, 1914:.

Application filed June e, 1913. Serial No. 772,705.

To all whom it may concern Be it known that I, PATRICK ROBERT MINAHAN, acitizen of the United States of America, residing at Fond du Lac, in thecounty of Fond du Lac and State of fisconsin, have invented certain newand useful Improvements in Eyeless Needles, of which the following is aspecification, reference beinghad therein to the accompanying drawmg.

This invention relates to needles and has for its object the productionof an eyeless needle.

Another object of this invention is the production of an eflieientthread holding means to prevent the accidental removal of the threadfrom the needle.

With these and other objects in view, this invention consists in certainnovel combinations, constructions, and arrangements of parts as will behereinafter fully described and claimed.

In the accompanying drawings; Figure 1 is a side elevation of myimproved needle with a thread attached thereto. Fig. 2 is a sideelevation of my needle with one end in section. Fig. 3 is a sectiontaken on line 33 Fig. 2. Fig. 4 is a side elevation of one end of myneedle. Fig. 5 is a detailed perspective view of one end of my needle.

Referring to the drawing by numerals 1O denotes the body of my improvedneedle that has a tapered pointed end 11. On the opposite end of thebody 10 is a split shank 12 which consists of two parts and is providedwith the external rounded threads 13. A longitudinally extending taperedthread receiving bore or groove 14 is formed in said shank. A sleeve 15provided with rounded threads 16 on its inner face is adapted to bethreaded on the shank 12 of the body. A thread 17 is shown positioned inthe groove or bore of the shank.

It will be seen from the foregoing description that to attach the threadto the needle the sleeve must be removed, and the end of the threadinserted in the groove or bore of the shank. The sleeve is then threadedon the shank and inasmuch as the groove is tapered and the split shankcontracts, the thread is held tightly in connection with the needle. Byhaving the threads rounded the threads do not cut the inserted piece ofthread, that the ordinary threads would do and thereby tend to wear andfinally break the piece of inserted thread.

It is obvious that minor changes may be made in the form andconstruction of the invention without departing from the materialthereof. It is, therefore, not wished to confine the invention to theexact form herein shown and described but it is wished to include allsuch as properly come within the scope claimed.

Having thus described the invention, what is claimed as new is Aneyeless needle comprising a pointed forward end, a rearwardly extendingthreaded shank carried thereby, said shank being split longitudinally ofits length for constituting a substantially tapering shank when the sameis in a compressed condition, the threads upon said shank being rounded,said shank provided with a longitudinally extending groove adjacent thesplit portion of said shank, an internally threaded sleeve positionedupon said shank and being provided with rounded threads, said threadsupon said shank adapted to grip a thread and extending within saidgroove of said shank for substantially one-half the depth thereof andconstituting eiiicient means for binding a thread in engagement withsaid needle.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

PATRICK ROBERT MINAHAN.

Witnesses E. M. McGowAN, A. E. SCRIBNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

. Washington, D. C.

